Аннотация:Tit Trofimovich Trofimov (1900-1985) – Russian geobotanist, ethnographer-historian, plant introducer, organizer and the first head of the arboretum on the new territory of the Botanical garden of M.V. Lomonosov Moscow State University on the Lenin (Vorobyovy) Hills, сreator of the collection and the plant breeder of sea buckthorn (Hippophaë rhamnoides L.), the author and co-author of more than ten varieties. T.T. Trofimov is a participant in the Great Patriotic War, awarded the Order of Glory III degree and the Order of Patriotic War II degree, and many medals. The sphere of scientific interests of T.T. Trofimov included the study of flora and vegetation in the Central zone of European Russia, Southern Kyrgyzstan, and the Far East, as well as research in the field of phenology, biology of the development of wood and shrub plants, their introduction and acclimatization. His local history research concerned Central Russia, as well as the local history of the nomadic economy of Mongolia.